USCF player statistics
Fonseca, Celso Luis Santos
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 3 published updates since Jul 2026
Other formats against Regular
+1 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +1
- Aug 2026 to Sep 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +1 from Aug 2026 to Sep 2026
- Updates that moved
- 1 of 2
- Latest +1, Aug 2026 to Sep 2026
- Typical move
- ±1
- Mean absolute change; spread ±0.7
Regular rating in context
United States
#21,548of 83,635 rated members · higher than 74.1%
62,051 lower · 37 same rating · 21,547 higher · ties share a rank
Kentucky
#210of 1,086 rated members · higher than 80.5%
875 lower · 2 same rating · 209 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,868 within 100 points of 1,374 (this player included)
1,350–1,399: 1,636 members (1.9%) · highlighted band is the player’s · dashed line is the target
75.2% below 1,400 (62,933 of 83,635; 74.1% below 1,374)
How these comparisons are calculated
Chess67 calculations from the Sep 2026 monthly rating update, using the same population as the USCF statistics pages: US members classified as active in the published monthly records, excluding lifetime-coded records, provisional ratings included. Ties share a rank; “lower” is strictly lower; national and state groups overlap. The target explorer keeps the population fixed, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Sep 2026 | 1,374 P+1 · 4 games | 1,375 Pno change · 4 games |
| Aug 2026 | 1,373 Pno change · 4 games | 1,375 Pno change · 4 games |
| Jul 2026 | 1,373 P4 games | 1,375 P4 games |